Southwestern Ontario is in for a blast of winter just in time for the start of the work week, with much of the region under a special weather statement or snowfall warning by Environment Canada.

The national weather agency is calling for snow, heavy at times, to start late Monday morning and last through the evening hours. Up to 15 centimetres of the white stuff is possible by nightfall thanks to an Alberta Clipper that will track across the region Monday, the agency said in a statement issued Sunday.

Norfolk. Haldimand and Oxford counties are all under the special weather statement.

A potent storm is approaching southern Ontario and will dump 10 to 20 cm of snow for many on Monday and will accompany blustery, frigid temperatures. https://t.co/8Jd7H5DOSs pic.twitter.com/7PpsVf6hUR — The Weather Network (@weathernetwork) January 27, 2019